Everything is copied.
Stealing is illegal. Copying is not and always a good thing.
Sam Walton created the first “Amazon” called Walmart by copying all the great ideas from already existing stores and combining them into one.
Bill Gates copying the GUI OS from Apple wasn’t a bad move at all and made him the richest man in the world. And who did Apple copy it from? Xerox. Yes, they copied the idea and profited tremendously but not as much Gates did.
Everything in the movie industry is copied. Some are exact copies — they are called remakes.